Port TEA commands into workflows and preload Murat knowledge (#660)

* Port TEA commands into workflows and preload Murat knowledge

* Broke the giant knowledge dump into curated fragments under src/modules/bmm/testarch/knowledge/

* Broke the giant knowledge dump into curated fragments under src/modules/bmm/testarch/knowledge/

* updated the web bunles for tea, and spot updates for analyst and sm

* Replaced the old TEA brief with an indexed knowledge system: the agent now loads topic-specific
  docs from knowledge/ via tea-index.csv, workflows reference those fragments, and risk/level/
  priority guidance lives in the new fragment files

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Co-authored-by: Murat Ozcan <murat@mac.lan>

src/modules/bmm/testarch/knowledge/risk-governance.md

@@ -0,0 +1,14 @@
+# Risk Governance and Gatekeeping
+
+- Score risk as probability (1–3) × impact (1–3); totals ≥6 demand mitigation before approval, 9 mandates a gate failure.
+- Classify risks across TECH, SEC, PERF, DATA, BUS, OPS. Document owners, mitigation plans, and deadlines for any score above 4.
+- Trace every acceptance criterion to implemented tests; missing coverage must be resolved or explicitly waived before release.
+- Gate decisions:
+  - **PASS** – no critical issues remain and evidence is current.
+  - **CONCERNS** – residual risk exists but has owners, actions, and timelines.
+  - **FAIL** – critical issues unresolved or evidence missing.
+  - **WAIVED** – risk accepted with documented approver, rationale, and expiry.
+- Maintain a gate history log capturing updates so auditors can follow the decision trail.
+- Use the probability/impact scale fragment for shared definitions when scoring teams run the matrix.
+
+_Source: Murat risk governance notes, gate schema guidance._